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Finding the Fourth Proportional to 3,770.57, 5,655.06 and 1,429.76

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Solution

The fourth proportional to 3,770.57, 5,655.06 and 1,429.76 is: 2,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.57 : 5,655.06 = 1,429.76 : x
  2. Step 2: Convert to fraction form
    3,770.57/5,655.06 = 1,429.76/x
  3. Step 3: Cross multiply
    3,770.57x = 5,655.06 × 1,429.76
  4. Step 4: Simplify right side
    3,770.57x = 8,085,378.59
  5. Step 5: Solve for x
    x = 8,085,378.59/3,770.57
  6. Step 6: Final answer
    x = 2,144.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.